At 2:15 this photo is a fake; it's the plane captured by the French at Toulouse and then delivered to the RAE. The photo has been retouched and the Vkz is inaccurate. The dark color on the rudder is the overpainting of the French three colors : blue, white and red. RAF markings :Orinal markings :

French markings with the tri-colored rudder :

British markings with the overpainted rudder :

And, finally, the fake German markings and addition of defensive armament and flying bombs..;